Product Description
Grinding balls typically exhibit high hardness, enabling them to resist wear and deformation while maintaining structural stability and performance. For instance, alumina ceramic grinding balls-composed primarily of high-purity alumina-possess a Rockwell hardness second only to diamond, surpassing even wear-resistant steel in durability.
Product Parameters
| Item |
Unit |
Data |
| Composition |
(wt%) |
ZrO2 94.8%±0.2% |
| Y2O3 5.2%±0.2% |
| Hardness |
HV |
1150~1400 |
| Mohs |
9 |
| Wear rate |
Planet ball mill (General condition) (%) |
< 0.2 |
| Planet ball mill ( Harsh condition)(%) |
< 1 |
| Bulk density |
g/cm3 |
6.00~6.08 |
| Bulk density |
g/cm3 |
3.6~3.8 |
| Crushing load |
Kgf(Φ1.5mm) |
≥75 |
| Water Absorption |
% |
0 |
| Roundness |
% |
98 |
| Color |
/ |
White/ivory |
The grinding ball needs to have good corrosion resistance,to adapt to the existence of various acids,alkali,salt and other corrosive substances.for example,silicon nitride grinding ball has good corrosion resistance to various corrosive substances,is suitable for the grinding process of chemical industry,metallurgy and other industries.
Silicon nitride grinding ball is also widely used in industrial grinding,including chemical industry,ceramic industry,metal processing industry and energy industry.silicon nitride grinding ball has excellent corrosion resistance,wear resistance and thermal stability,can meet the needs of various acid,alkali,salt and other corrosive media,improve processing efficiency and quality.
Product Application
Grinding balls are widely utilized across multiple industries, including raw material processing, quartz and glass manufacturing, lithium battery material production, silicon powder refinement, and oil/gas mining equipment. Their high wear resistance and non-metallic properties make them particularly suitable for processing hard materials where metal contamination must be avoided, such as in the grinding of white cement, ceramics, electronic components, magnetic materials, coatings, and mineral-based raw materials.
Packaging & Shipping

Q1: Where Is Your Factory Located?
A: Our factory are located in No.1-269, Zone B, Xiangdong Industrial Park, Xiangdong District, Pingxiang City, Jiangxi,China.welocme your visiting.
Q 2: What Are Your Main Products?
A:Our factory mainly produces various kinds of ceramic balls, molecular sieves, actived alumina, tower random packing,plastic and metal material, environmental filter materials, high-performance ceramics and so on.
Q3: What Kind Of Payment Do You Accept?
A:we accept T/T,western union.
Q4:What's your terms of delivery?
A:EXW, FOB, CIF .
Q5: Can I get free samples?
A: Yes, free samples 1-2 kg,please advise your contact details.
Q6: What is your MOQ?
A: The MOQ is different as per different products, for example, 1 Ton for ceramic ball.